Out of curiosity, how is the housing & health care situation in those conservative provinces compared to other provinces (like Quebec, where I live in)?
It's instructive to compare Vancouver to Toronto. 10 years ago in BC health care was in worse shape and housing was ~2X the cost of Toronto. In the past 10 years BC has had an NDP government and Ontario a Conservative one. Both housing & health care have gotten worse in BC, but at a much lower rate than in Ontario. Today health care in BC is in much better shape than Ontario, and the cost of housing in Vancouver is about the same as it is in Toronto.
Are there any numbers/data for the quality of healthcare in the provinces over time?
At least for housing I see the average home prices in each category (condos, townhomes, detached) still higher in Vancouver than Toronto (when googling a bit, I found https://wowa.ca/reports/canada-housing-market with some data. But there's probably lots of real estate related sites with more).
I moved from a liberal province to a conservative province last year. My cost of living is 25% lower, gas is much cheaper and I was able to buy a new beautiful house which was an impossibility in my previous province.